
Eurycoma longifolia
Also known as Long Jack, Malaysian Ginseng.
Traditional Southeast Asian use as aphrodisiac and tonic primarily root extracts studied clinically rare cases of hepatotoxicity reported, possibly due to contaminants or high doses ensure standardized, tested products free of mercury, lead, adulterants like sildenafil

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| Preparation | As written | Metric |
|---|---|---|
| Standardized root extract | Standardized root extract 200-400 mg daily | 200-400 mg |
Doses are reproduced from the sources for practitioners and are not a recommendation for any person.
Clinical Notes. Traditional Southeast Asian use as aphrodisiac and tonic primarily root extracts studied clinically rare cases of hepatotoxicity reported, possibly due to contaminants or high doses ensure standardized, tested products free of mercury, lead, adulterants like sildenafil
safety-contraindications. E. longifolia has a good safety profile with no serious adverse effects at recommended doses in clinical trials, but is contraindicated in hormone-sensitive cancers, pregnancy and lactation, may cause mild insomnia or restlessness, and rare hepatotoxicity has been reported possibly due to contaminants or high doses.
testosterone-boosting. Eurycoma longifolia increases testosterone levels by reducing sex hormone-binding globulin, thereby increasing free testosterone availability; a systematic review and meta-analysis found that supplementation significantly increases serum total testosterone in men.
late-onset-hypogonadism. Studies in men with late-onset hypogonadism have shown improvements in testosterone levels, supporting use for age-related testosterone decline and andropause symptoms.

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